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Entry Level Software Engineer Jobs in Saint Charles, IL

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Software Engineer (C#/React)

Chicago, IL · On-site +1

Active participation in the design and implementation of our software solutions - we use our ... Bachelor's degree (Computer Science or Engineering) or related experience * 2 - 4 years of ...

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Software Engineer (C#/React)

Chicago, IL · On-site +1

Active participation in the design and implementation of our software solutions - we use our ... Bachelor's degree (Computer Science or Engineering) or related experience * 2 - 4 years of ...

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Software Engineer (C#/React)

Chicago, IL · On-site

Active participation in the design and implementation of our software solutions - we use our ... Bachelor's degree (Computer Science or Engineering) or related experience * 2 - 4 years of ...

Just In Time Staffing LLC

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Entry Level Manufacturing Engineer

Elgin, IL · On-site

$65K - $82K/yr

Position: Entry- Level Manufacturing Engineer Job Type : Direct Hire Pay: $65,000 - $82,000 ... Familiarity with CAD software. * Understanding of Lean Manufacturing, Continuous Improvement, or ...

dbHMS

Entry Level Mechanical Engineer

Chicago, IL · On-site

$60K - $70K/yr

Our Design Studio team, in our Chicago office is seeking an Entry Level Mechanical Engineer . This ... Operate BIM Software. * Read and understand construction documents, floor plans and equipment ...

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Showing results 21-40

All JobsSoftware Engineer JobsEntry Level Software Engineer JobsEntry Level Software Engineer Jobs in Saint Charles, IL

Entry Level Software Engineer information

See Saint Charles, IL salary details

$23.5K

$102.6K

$184.9K

How much do entry level software engineer jobs pay per year?

As of Sep 2, 2026, the average yearly pay for entry level software engineer in Saint Charles, IL is $102,574.00, according to ZipRecruiter salary data. Most workers in this role earn between $63,600.00 and $117,400.00 per year, depending on experience, location, and employer.

What does an entry level software engineer do?

An entry level software engineer is responsible for assisting in the design, development, testing, and maintenance of software applications. They typically work under the guidance of more experienced engineers and may write code, debug programs, and participate in code reviews. The role often involves learning company-specific tools and workflows, collaborating with team members, and continuously improving technical skills. Entry level software engineers are expected to adapt quickly, communicate effectively, and contribute to the team's overall goals.

What does an entry level software engineer do?

An Entry-Level Software Engineer, also called a Junior Engineer, works with a team of mid-level and senior engineers to develop, test, and maintain software applications and programs. The job duties of Junior Software Engineers typically include relatively simple routine tasks, such as debugging, testing, and code documentation. These tasks hone a Junior Engineer’s skills and familiarize them with the company’s code base. As Software Engineers gain more years of experience, they work on more complex development projects.

What are the key skills and qualifications needed to thrive as an entry level software engineer, and why are they important?

To thrive as an Entry Level Software Engineer, you need a solid understanding of programming languages (such as Java, Python, or C++), computer science fundamentals, and often a relevant bachelor’s degree. Familiarity with version control systems like Git, development frameworks, and basic software development tools is typically expected. Strong problem-solving abilities, eagerness to learn, and effective collaboration are standout soft skills in this role. These skills are crucial for building reliable software, adapting to evolving technologies, and contributing productively to team projects.

What types of projects do entry level software engineers typically work on, and how do they collaborate with other team members?

Entry level software engineers often start by working on smaller features, bug fixes, or assisting with testing and documentation within larger projects. They usually collaborate closely with senior engineers, product managers, and QA teams through code reviews, daily stand-ups, and pair programming sessions. This structure helps new engineers learn best practices, understand the codebase, and gradually take on more complex assignments. Effective communication and a willingness to learn are key to success in these collaborative environments.

What is the difference between Entry Level Software Engineer vs Software Developer?

AspectEntry Level Software EngineerSoftware Developer
Required CredentialsBachelor's in CS or related field; some internshipsBachelor's in CS or related; coding experience
Work EnvironmentTeam-based, collaborative projects, entry-level tasksProject-focused, coding, debugging, and implementation
Employer & Industry UsageTech companies, startups, IT departmentsSoftware firms, tech startups, enterprise IT
Common Search & ComparisonYesYes

Entry Level Software Engineers and Software Developers often share similar educational backgrounds and work environments. The main difference lies in their roles: engineers may focus more on designing systems and architecture, while developers typically concentrate on coding and implementation. Both roles are essential in tech industries and often overlap in job functions, but understanding these distinctions helps job seekers target the right positions.

Is 25 too late to become an entry level software engineer?

Entry level software engineering roles are open to candidates of all ages, and starting at 25 is common. Many employers value skills, such as programming languages and problem-solving abilities, over age, and individuals can transition into the field through coding bootcamps, online courses, or degree programs. Age should not be a barrier to entering an entry level software engineering position.
More about Entry Level Software Engineer jobs

What are the most commonly searched types of Software Engineer jobs in Saint Charles, IL?

The most popular types of Software Engineer jobs in Saint Charles, IL are:

What are popular job titles related to Entry Level Software Engineer jobs in Saint Charles, IL?

For Entry Level Software Engineer jobs in Saint Charles, IL, the most frequently searched job titles are:

What job categories do people searching Entry Level Software Engineer jobs in Saint Charles, IL look for?

The top searched job categories for Entry Level Software Engineer jobs in Saint Charles, IL are:

What cities near Saint Charles, IL are hiring for Entry Level Software Engineer jobs?

Cities near Saint Charles, IL with the most Entry Level Software Engineer job openings:

Entry Level Software Engineer jobs near you
Infographic showing various Entry Level Software Engineer job openings in Saint Charles, IL as of August 2026, with employment types broken down into 100% Full Time. Highlights an 100% In-person job distribution, with an average salary of $102,574 per year, or $49.3 per hour.

Quantum Software Engineer - Compiler & Control Systems

Infleqtion

Chicago, IL • On-site

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 9 days ago

Job description

Position Summary
This Quantum Software Engineer role will join the Compiler Team within Infleqtion's Quantum Software organization. The role will design, build, and maintain quantum compilation software, with particular responsibility for the interface between quantum circuits, error-correction software, and hardware control systems.
The role combines hands-on software development, system design, code review, and R&D. It will contribute to co-design efforts spanning applications, algorithms, compilation, error decoding, hardware, and control. Ideal candidates have a strong software engineering background and are interested in learning the quantum-computing and hardware-control context needed for the role.
This role is open to both entry-level and senior-level candidates.
Job Responsibilities
  • The duties and responsibilities outlined below include essential functions of the role. Depending on business needs, this role may perform a combination of some or all of the following duties. Duties, responsibilities, and activities may change, or new ones may be assigned.
  • Conduct R&D toward advances in quantum compilation, execution, and fault-tolerant quantum computing, similar to work described in https://arxiv.org/abs/2309.05157 and https://arxiv.org/abs/2509.13247.
  • Design and implement software interfaces and intermediate representations that translate compiled quantum circuits into executable control-system programs, including gate operations, timing, qubit movement, measurement, and other hardware functionality.
  • Develop software that connects quantum error-correction circuits with decoding and execution systems, including representation and processing of measurement results, syndrome data, decoder outputs, and Pauli-frame updates.
  • Collaborate with hardware, control, and experimental teams to define stable, well-documented interfaces between compilation software and the control system.
  • Build tooling to validate, simulate, test, and debug circuit-to-control translations, including timing constraints, hardware capabilities, and execution results.
  • Deploy software optimizations to our cloud platform Superstaq using industry-grade software engineering procedures, including documentation, linting, testing, type checking, and code review.
  • Contribute to development of government and commercial proposals and execution on global programs.
  • Collaborate with experimental physicists, control engineers, and software engineers to bridge theoretical concepts and practical implementation.
  • Engage with the broader scientific community by publishing research findings in scientific journals and presenting at conferences.
  • Stay up to date with developments in compiler design, quantum computer architecture, control systems, error correction, decoding, and related fields.
  • Provide guidance and support to other team members, fostering a collaborative research environment.

Requirements
  • Bachelor's degree in computer science, engineering, physics, or a directly related field.
  • High proficiency in programming, with fluency in Python preferred. Proficiency in C++, Rust or another systems-oriented language, with the ability to rapidly upskill in Python, is also welcome.
  • Experience designing, building, or maintaining complex software systems, such as compilers, intermediate representations, runtimes, simulators, distributed systems, embedded/control software, or performance-critical scientific software.
  • Ability to reason clearly about software interfaces, data models, APIs, and the tradeoffs between abstraction, performance, and maintainability.
  • Experience with software testing and debugging, including unit tests, integration tests, type checking, version control, and CI/CD practices.
  • Demonstrated ability to work and communicate with all levels of an organization, including professional verbal, written, and presentation skills.
  • Demonstrated ability to work comfortably in a highly collaborative, cross-functional, team-oriented, and matrixed environment.
  • Demonstrated ability to learn new and complex topics quickly, including a willingness to develop familiarity with quantum -computing concepts through work with domain experts.
  • Resourceful problem-solver who collaboratively identifies effective paths forward and can execute productization efforts.
  • Passion for solving complex problems and challenges in a highly technical and scientific environment.
  • Ability to be in the office any three days per week.
  • Ability to travel domestically and potentially internationally up to 10%.
Preferred Qualifications
  • Experience with compiler infrastructure, scheduling, instruction selection, intermediate representations, program analysis, or code generation.
  • Experience with real-time, embedded, hardware-control, or scientific-instrumentation software; familiarity with timing-sensitive execution systems is particularly valuable.
  • Experience building software that integrates measurement data, feedback, calibration data, telemetry, or other hardware-generated data into an execution pipeline.
  • Familiarity with quantum error correction, decoders, stabilizer simulation, fault tolerance, or syndrome processing.
  • Familiarity with quantum computing concepts such as native gate decomposition, qubit mapping and routing, circuit scheduling, and hardware-aware compilation.
  • Experience with open-source quantum software frameworks such as Cirq, Qiskit, Stim, or similar tools.
  • Experience developing or optimizing scientific, simulation, decoding, or data-processing workloads for high-performance computing environments, including GPU-accelerated or distributed systems.
  • Experience with backend development using tools such as FastAPI, PostgreSQL, or SQLAlchemy.
  • Experience with cloud development, especially on GCP or AWS.
  • Familiarity with security best practices, including access control, encryption at rest, key rotation, and logging.
  • Exposure to or interest in front-end or GUI development, such as HTML/CSS, React, or PyQt.

Benefits
  • Salary range: $145,000 to $170,000 per year
  • 100% company-paid medical, dental, vision, short/long-term disability
  • Employer-funded Health Savings Account
  • Unlimited PTO
  • 401(k) match
  • Company-paid Life and AD&D Insurance
  • Flexible Savings Account
  • Paid FMLA, Maternity/Paternity Leave
  • Employee Assistance Program
  • Student Loan Repayment
  • Equity Package

Equal Opportunity
Here you have freedom to embrace your whole self: who you love, your gender identity and expression, skin color, age, appearance, disability, neurodiversity, DNA, military/veteran status, citizenship, and other factors that make up who you are. Your uniqueness is valued, welcomed, and appreciated here. We are dedicated to providing a positive workplace and base all employment decisions on your qualifications, performance, merits, as well as business needs. We are proud to be an Equal Employment Opportunity Employer.
Note
This position may require access to information protected under U.S. export control laws and regulations for quantum computing technology. Please note that any offer for employment may be conditioned on authorization to receive software or technology controlled under these U.S. export control laws and regulations without sponsorship for an export license.
Contact Information
If this opportunity interests you and you fit the job description, please submit an application. If you need assistance or an accommodation due to disability, please feel free to contact us at hr@infleqtion.com.
Notice to Recruitment Agencies:
Infleqtion does not accept unsolicited resumes from agencies. Infleqtion is not responsible for any fees related to unsolicited resumes.

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